Persamaan Transistor D998 B778 ((full)) -

In the realm of high-performance electronics, the 2SD998 (NPN) and 2SB778 (PNP) are recognized as a foundational complementary pair, primarily celebrated for their role in audio power amplification. This essay explores the technical specifications, practical applications, and equivalent alternatives (persamaan) of these silicon power transistors. Technical Specifications and Complementary Role

10. Conclusion

The 2SD998 and 2SB778 represent a mature, robust, and sonically competent complementary power transistor pair. While no longer in active production, their legacy lives on in countless vintage amplifiers. For restoration projects or new designs, they can be directly substituted by the Sanken 2SA1295/2SC3264 or Toshiba 2SA1943/2SC5200 pairs. Persamaan Transistor D998 B778

Sebelum mengganti, pastikan:

Transition Frequency ($f_T$):

Memahami spesifikasi dasar sangat penting agar transistor pengganti yang Anda pilih tidak mudah rusak karena beban yang berlebih. Spesifikasi (D998 / B778) Tipe Polarity D998 (NPN) / B778 (PNP) Tegangan Maksimum ( VCEOcap V sub cap C cap E cap O end-sub ) Arus Kolektor Kontinu ( ICcap I sub cap C ) Disipasi Daya ( PCcap P sub cap C ) Kemasan (Package) TO-3P / TO-247 Frekuensi Transisi ( fTf sub cap T ) 2. Daftar Persamaan Transistor (Ekuivalen) In the realm of high-performance electronics, the 2SD998

          +Vcc (+50V to +70V)
            |
            R1 (0.22Ω/5W)
            |
            C (2SD998)
            |
Driver Stage (NPN) --- B (D998)   E --- to Speaker (via relay)
            |
            B (B778)   E --- to Speaker
            |
Driver Stage (PNP) --- C (2SB778)
            |
            R2 (0.22Ω/5W)
            |
          -Vcc (-50V to -70V)

Pin Configuration (Standard TO-220)

Most D998 and B778 transistors use the TO-220 package with the following pinout (looking at the front face): Pin Configuration (Standard TO-220) Most D998 and B778